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Atomic structure discovery timeline highlighting major contributions from ancient to modern scientists.

A timeline chart titled "Atomic structure - discovery timeline" showing key scientists and their contributions to atomic theory, including Democritus (400 B.C.), Antoine Lavoisier (1789), John Dalton (1803), Dmitri Mendeleev (1869), and JJ Thomson (1898), with brief descriptions of their discoveries.

JPEG 1240×1754 163.9 KB Free · Personal Use

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